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[PATCH] qtest/npcm7xx_pwm-test: Fix memleak in pwm_qom_get
From: |
Gan Qixin |
Subject: |
[PATCH] qtest/npcm7xx_pwm-test: Fix memleak in pwm_qom_get |
Date: |
Fri, 15 Jan 2021 15:56:34 +0800 |
The pwm_qom_get function didn't free "response", which caused an indirect
memory leak. So use qobject_unref() to fix it.
ASAN shows memory leak stack:
Indirect leak of 74160000 byte(s) in 18000 object(s) allocated from:
#0 0x7f96e2f79d4e in __interceptor_calloc (/lib64/libasan.so.5+0x112d4e)
#1 0x7f96e2d98a50 in g_malloc0 (/lib64/libglib-2.0.so.0+0x55a50)
#2 0x556313112180 in qdict_new ../qobject/qdict.c:30
#3 0x556313115bca in parse_object ../qobject/json-parser.c:318
#4 0x556313117810 in parse_value ../qobject/json-parser.c:546
#5 0x556313117bda in json_parser_parse ../qobject/json-parser.c:580
#6 0x55631310fe67 in json_message_process_token
../qobject/json-streamer.c:92
#7 0x5563131210b7 in json_lexer_feed_char ../qobject/json-lexer.c:313
#8 0x556313121662 in json_lexer_feed ../qobject/json-lexer.c:350
#9 0x5563131101e9 in json_message_parser_feed ../qobject/json-streamer.c:121
#10 0x5563130cb81e in qmp_fd_receive ../tests/qtest/libqtest.c:614
#11 0x5563130cba2b in qtest_qmp_receive_dict ../tests/qtest/libqtest.c:636
#12 0x5563130cb939 in qtest_qmp_receive ../tests/qtest/libqtest.c:624
#13 0x5563130cbe0d in qtest_vqmp ../tests/qtest/libqtest.c:715
#14 0x5563130cc40f in qtest_qmp ../tests/qtest/libqtest.c:756
#15 0x5563130c5623 in pwm_qom_get ../tests/qtest/npcm7xx_pwm-test.c:180
#16 0x5563130c595e in pwm_get_duty ../tests/qtest/npcm7xx_pwm-test.c:210
#17 0x5563130c7529 in test_toggle ../tests/qtest/npcm7xx_pwm-test.c:447
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
---
Cc: Havard Skinnemoen <hskinnemoen@google.com>
Cc: Tyrone Ting <kfting@nuvoton.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Laurent Vivier <lvivier@redhat.com>
---
tests/qtest/npcm7xx_pwm-test.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tests/qtest/npcm7xx_pwm-test.c b/tests/qtest/npcm7xx_pwm-test.c
index 33fbdf5f54..63557d2c06 100644
--- a/tests/qtest/npcm7xx_pwm-test.c
+++ b/tests/qtest/npcm7xx_pwm-test.c
@@ -175,6 +175,7 @@ static int pwm_index(const PWM *pwm)
static uint64_t pwm_qom_get(QTestState *qts, const char *path, const char
*name)
{
QDict *response;
+ uint64_t val;
g_test_message("Getting properties %s from %s", name, path);
response = qtest_qmp(qts, "{ 'execute': 'qom-get',"
@@ -182,7 +183,9 @@ static uint64_t pwm_qom_get(QTestState *qts, const char
*path, const char *name)
path, name);
/* The qom set message returns successfully. */
g_assert_true(qdict_haskey(response, "return"));
- return qnum_get_uint(qobject_to(QNum, qdict_get(response, "return")));
+ val = qnum_get_uint(qobject_to(QNum, qdict_get(response, "return")));
+ qobject_unref(response);
+ return val;
}
static uint64_t pwm_get_freq(QTestState *qts, int module_index, int pwm_index)
--
2.27.0
- [PATCH] qtest/npcm7xx_pwm-test: Fix memleak in pwm_qom_get,
Gan Qixin <=